TH400 transmission
In 2008 when Karl Ellwein shipped his Impala SS to race with us in Sweden, he also brought
with him a race built TH400 and Edge converter as back up for his 4L60E. Then he sold his car
but his back up things were left. Suddenly in 2011 he decided to give it all to me so Kent Edin
in Umeå and I could play freely with these things! Thanks Karl! Kent wanted to have the things
right away to intall them for the season 2012...
However, I broke my input shaft in my 4L80E at Tierp in July 2011 so I said I now have a perfect
opportunity to throw in the things and have a test, before the winter! Ok?! - Absolutely, said Kent.
On this page I'll show you how you "throw in" a TH400 in a Impala SS, at least in mine.
August 17 - 2011
- Dad, have you seen
my skateboard?
"Sing la la la lalala...whistle whistle...hum hum..."
Edge converter seems much smaller. Karl said that my 5-clutch
Vigilante may be stronger for an overweight SS but I'll definitely go
quicker with this one! With or without transbrake...
Original shifter looks and feels simple compared to the Cheetah but
is doing its job without any problems in the SS. Now I put it on
the shelf for a while...
OK, somewhere here...how to get that flexible wire underneath...?
"The Wheel" in chromemoly from JW Performance Florida now awaits
the little Edge converter and the ex-Black Wolf TH400....
August 18 - 2011
Easy!
TH400 - that was a small, light and easy-to-install transmission!
I did it myself underneath the Impala, me and my jack! The trickiest
moments were as usual some of the bolts to the engine and that
#%¤&(/) transmission blanket, just like with the 4L80E!
However, the biggest problems with the 4L80E are its size and
weight compared to this TH400. This was nothing!
Transmission Cross Member. Smart of me to keep the brackets for the 4L60E even if I knew I would
never go back to that original transmission, the "you never know" reasoning kept them, when welding
on new brackets for the longer 4L80E. I didn't know then that the TH400 was almost the same position
of the transmission mount! But these lower rusty bolts for the extension housing stopped the cross
member to come up in position. Had to go.
So extension housing off...
Hello Kenneth Feldthusen! So many nice machines you have! Kenneth is always a supporting soul.
And he indeed is a friend with the machines! Thanks again Kenneth!
Preparing for countersinked 3/8" bolts, and off 2 mm from the hats too!
See how nice the countersinked bolts became! The other necessary mod was too move the
transmission mount rearwards as much as possible to make it go free from the cross member.
That by making new bolt holes as much as possible forward.
With a bit of luck everything fell into its place!
Snug fit when the mount bolts cleared the cross member. As you can notice, the 2-bolt pattern is a bit
wider on TH400 than the 4L80E. Also the extension housing cleared the cross member by nothing.
You couldn't get a sheet of paper in there, why you would like to do that?
There you go! TH400 mounted in the Blackout Impala SS! And the drive shaft went on with no problems!
Time to wrap it up and start it!
August 23
B r o k e n ?
What the bloody xxxx is this sound from the Edge converter?
Well, I can't go to a race and load 1100 horses into it anyway,
without knowing what it is! Last user Karl don't know, he have never
heard it before and it was meant to be his reserve converter while
he was here racing in Europe himself. All other reactions among
the people I've asked are the same. No idea. Do you know?
So, instead of starting up and load our transport for the race at
Moholmsstrippen this weekend, I have to take it all out again!
The TH400 adventure is over for this time, before it started!
Thanks! :-(
Good news: My ordinary 4L80E and converter is repaired,
checked in dyno by Danielssons Bil and Alexandra Engineering
in Stockholm and is ready today, but will not be in time in
Gothenburg so I have a chance to race at Moholmstrippen!
That's racing! Or no racing!
Click image above to listen to the sound...
Much more...I'm afraid...
